x 67 64 75 86 73 73
y 44 41 48 51 44 51
(a) Find Σx, Σy, Σx2, Σy2, Σxy, and r.
Σx = Σy = Σx2 = Σy2 = Σxy = r = (b) Use a 5% level of significance to test the claim that > 0.
t = critical t = Conclusion
Reject the null hypothesis, there is sufficient evidence that > 0.
Reject the null hypothesis, there is insufficient evidence that > 0.
Fail to reject the null hypothesis, there is insufficient evidence that > 0.
Fail to reject the null hypothesis, there is sufficient evidence that > 0.
(c) Find Se, a, b, and x.
Se = a = b = x = (d) Find the predicted percentage ŷ of successful field goals for a player with x = 75% successful free throws.
%
(e) Find a 90% confidence interval for y when x = 75. (Round your answers to one decimal place.)
lower limit %
upper limit %
(f) Use a 5% level of significance to test the claim that > 0.
t = critical t = Conclusion
Reject the null hypothesis, there is sufficient evidence that > 0.
Reject the null hypothesis, there is insufficient evidence that > 0.
Fail to reject the null hypothesis, there is insufficient evidence that > 0.
Fail to reject the null hypothesis, there is sufficient evidence that > 0.